Rapture's proletariat hero from Bioshock. He came down to Rapture in order to find a better life for his wife, Moira and their wee-baby Patrick. He got a posse to roll deep with on December 31, 1959, when they rushed into the Kashmir Restaurant. The actions Atlas preformed once inside the restaurant were EXTREMELY cold-blooded. Slaying all the rich and wealthy denizens of Rapture - taking no prisoners. Once his cause appeared desperate he arranged for the son of Rapture's founder, Andrew Ryan, to return to the city, this way Atlas could control him to assassinate his own father. Atlas stands as a true pimp of his time.

Kid playing Bioshock: "Where's Atlas?"

Friend watching: "There he is! The switch opened up the door from Arcadia, and let him into the submarine bay!"

Then, from across the field, Jonson caught a sight that filled him with utter terror. Smiling back at his Catapault was the white sculled head of an Atlas. With a flash of the hip mounted muzzle, a Gauss slug was set free. Jonson knew it was all over.

Of the two, he is the shorter, blue eyed testing unit of the Cooperative Testing Initiative made by GLaDOS after her mistrust in humans after the events of Portal 1 to solve tests in the Valve game Portal 2. Best friend of P-Body, the taller orange eyed Cooperative Testing Initiative testing unit.